Ratio of cross-sections of kaons to pions produced in pp collisions as a function of √s

被引：0
|
作者：
Lykasov, G. I. [1 ]
Malakhov, A. I. [1 ]
Zaitsev, A. A. [1 ]
机构：
[1] Joint Inst Nucl Res, Joliot Curie 6, Dubna 141980, Russia
来源：
EUROPEAN PHYSICAL JOURNAL A | 2021年 / 57卷 / 03期
关键词：
TRANSVERSE-MOMENTUM SPECTRA; HADRON-PRODUCTION; SELF-SIMILARITY; AA COLLISIONS; MULTIPLICITIES; DISTRIBUTIONS; DEPENDENCE; J/PSI;
D O I：
10.1140/epja/s10050-021-00408-9
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
A calculation of the inclusive spectra of pions and kaons produced in pp collisions as functions of their transverse momentum p(T) at mid-rapidity is presented within the self-similarity approach. A satisfactory description of the data within a wide range of initial energies is presented. We focus mainly on the ratio of cross-sections of K-+/- to p(+/-) mesons produced in pp collisions as a function of root s. A fast rise of this ratio, when the initial energy increases starting from the kaon production threshold up to root s similar or equal to 20-30 GeV, is revealed together with its very slow increase up to LHC energies. The energy dependence of this ratio is due to the conservation laws of four-momenta and quantum numbers of the initial and produced hadrons. The more or less satisfactory agreement of these ratios with NA61/SHINE, RHIC and LHC data is demonstrated.
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页数：7
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